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Iloca
Unregistered at user's request


Reged: 06/12/2005
Posts: 3800
Loc: Northern Ireland
Re: D3 Autofocus Problems?
      12/07/2008 14:47

I like to use them too if using a tripod but in that case I'm selecting an individual point from those available although sometimes I switch to live view and focus manually, that allows me to move the area selection (for the area I want magnified) anywhere in the scene.

That said it's implied that having a higher number of AF points is aimed at sports photography or moving subjects. I certainly wouldn't even select dynamic mode (where you pre select 1 point and the camera then brings the surrounding 4 points as well) for still subjects.

It almost seems that using all available points is to enable you to achieve an acceptable level of focus for those times when you can't be too selective. For the best focus accuracy single point or even better MF is most likely the best option.

Here's an interesting take on the accuracy or otherwise of AF in general. Reading between the lines may go some way to explaining the focus issues that have been cropping up recently with various cameras. Whats the odds that quite a few shots that show up as being slightly out of focus would be fine when printed rather than inspected at pixel level.

The Fallibility of Focus

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Entire topic
Subject Posted by Posted on
* D3 Autofocus Problems? TimF 04/07/2008 09:54
. * * Re: D3 Autofocus Problems? Mark_Norton   04/07/2008 15:36
. * * Re: D3 Autofocus Problems? TarquinBiscuit   04/07/2008 16:40
. * * Re: D3 Autofocus Problems? TarquinBiscuit   04/07/2008 16:55
. * * Re: D3 Autofocus Problems? Malcolm_Stewart   04/07/2008 23:31
. * * Re: D3 Autofocus Problems? TarquinBiscuit   05/07/2008 00:39
. * * Re: D3 Autofocus Problems? David_S   08/07/2008 15:47
. * * Re: D3 Autofocus Problems? Iloca   08/07/2008 18:05
. * * Re: D3 Autofocus Problems? TimF   11/07/2008 10:24
. * * Re: D3 Autofocus Problems? Iloca   11/07/2008 21:43
. * * Re: D3 Autofocus Problems? El Sid   12/07/2008 08:34
. * * Re: D3 Autofocus Problems? Neil_L   30/07/2008 09:42
. * * Re: D3 Autofocus Problems? Iloca   12/07/2008 13:20
. * * Re: D3 Autofocus Problems? El Sid   12/07/2008 13:57
. * * Re: D3 Autofocus Problems? Iloca   12/07/2008 14:47
. * * Re: D3 Autofocus Problems? El Sid   12/07/2008 16:19
. * * Re: D3 Autofocus Problems? Iloca   12/07/2008 17:30
. * * Re: D3 Autofocus Problems? TarquinBiscuit   16/07/2008 12:48
. * * Re: D3 Autofocus Problems? TimF   18/07/2008 09:55
. * * Re: D3 Autofocus Problems? LargeFormat   04/07/2008 13:41

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